LANGDON, Mo. (DTN) -- Retirement is something many city people work toward. It is not just an end, but a goal. However, for many of America's family farmers, the singular goal is to grow another crop. That's the way it is for View from the Cab farmer Karen Johnson of Avoca, Iowa.

Thanks to modern medicine, health and life expectancies are on the rise. "I really think you have to give up this quaint notion that you have to retire when you're 65," Karen told DTN. "We have neighbors still farming at 95."